We carry out morphological spectral analysis of regular total electron content (TEC) variations, based on the data of dual-frequency GPS/GLONASS receivers located in mid-latitude and polar regions for the period from 2002 till 2015. We reveal basic harmonics, existent in TEC spectrum and determine their features. It is shown that variations with periods of 1, 1/2 ... and up to 1/5 of a day, 27-day...
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Second order statistical moments of scattered radio wave in the turbulent collision magnetized plasma are investigated for the anisotropic Gaussian correlation function of electron density fluctuations using the modify smooth perturbation method taking into account polarization coefficients of the ordinary and extraordinary HF wave modes and the diffraction effects. The behavior of the phase struc...
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A theoretical model is provided for ME effect in compositionally-stepped multi-layers of piezoelectric and magnetostrictive components. We assume the piezoelectric and piezo-magnetic layers to be perfectly bonded together and the piezoelectric layers restrict the strain of the piezomagnetic layer in an applied magnetic field. Analytical expressions for ME voltage coefficients are derived by substi...
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Formation of different structures of protein films in process of dehydration of water solutions of albumin is discussed. Optical method of observation was used for analysis of different molecular structures in the protein films. The influence of magnetic field and solution acidity during drying of the solution on structures in the films is considered.
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We present a theoretical investigation of the Goos-Hänchen and Imbert-Fedorov shifts of a Gaussian light beam upon reflection from a multilayered structure consisting of a ne-matic liquid crystal cell sandwiched between electrodes and deposited on a magneto-electric/non-magnetic bilayer. We show that the Goos-Hänchen shift, in contrast to the Imbert-Fedorov shift, can be enhanced and controlled bo...
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A new fiber optic plasmon refractive index sensor was designed. On water solutions a resolution of 2<sub>*</sub>10<sup>-6</sup> refractive index units (RIU) was demonstrated. It was shown that a reliable detection of low concentrations of proteins in solutions is possible. Myoglobin in acetate buffer at a concentration of 500ng/ml was detected.
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Shanghai is currently faced with the complex atmospheric pollution problem such as ozone (O3) and PM2.5. O3 is responsible for oxidization of atmospheric constituents that in turn produces secondary pollutants. Reducing atmospheric oxidation is the underpinning strategy for the prevention and control of pollution in this city. According to the observation data from the online...
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In this paper we perform results of laser induced apoptosis and necrosis stages study in live rats cancer cells. Induction of cell death was carried out at various conditions of laser power and time exposure. Stages of apoptosis were controlled by optical microscopy. During cell death process, Raman spectra of apoptotic and necrotic cells were registered at Centaur U HR science unit equipped with ...
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A new augmented combined field integral equation formulation to address the low frequency instability issue is presented. The new integral equation formulation is achieved by combing the magnetic field integral operator and the augmented electric field integral equation (A-EFIE). In addition to that, a constraint preconditioning is also introduced to fast up the convergence speed of the system mat...
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This article suggests a method of approximate calculation of microwave heating of the micron-sized metal particles, based on the two limiting cases when the skin depth is much larger than the particle size and when the skin depth is much smaller than the particle size. The calculation was done for spheroidal and ellipsoidal particle shapes. To investigate the spheroidal particles the comparison of...
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Magnetically controlled reactor (MCR) is a variable inductance which can be used to regulate the reactive power in the utility, and exert positive impacts to the power quality. However, MCR also generates great harmonics and noise which sometimes limit its application. This paper proposed an optimal design of the MCR to decrease the harmonics in the output current. Furthermore, a novel modeling me...
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The article presents certain general conclusions obtained from an investigation of a vibration-powered minigenerator functioning as a harvester. In this context, the authors summarize the parameters that are critical in designing optimal generators to retrieve the residual energy contained in an electromechanical system and transferred through the vibrations of an independent structure. The discus...
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The paper describes using electrical impedance tomography in non-destructive material testing. Under certain Neumann and Dirichlet boundary conditions, the forward EIT computation yields an estimation of the electric potential field in the interior of the volume. The FEM, in 2D or 3D, is exploited for the forward problem with current sources. Image reconstruction in EIT is an inverse problem, usua...
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A linearly and circularly reflective polarization converter (RPC) using bilayer unidirectional asymmetry electric inductive-capacitive (UAELC) chiral metamaterial (CMM) is theoretically demonstrated. By normally illuminated by a linear polarized (LP) incidence on front side or back side of the proposed CMM, backward 90° polarization rotation with cross polarization conversion (CPC) ratio of over 9...
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In this paper using a scanning near-field optical microscope (SNOM) with a small-aperture metal tip, we show that a chromium ZP with relief of height equal to 30 nm and focal length of one wavelength focuses a linearly polarized Gaussian beam into an ellipse with the Cartesian axis diameters FWHMx= 0.42λ and FWHMy= 0.64λ where λ is the incident wave-length.
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We designed, fabricated, and characterized a thin metalens in an amorphous silicon film of diameter 30 μm, focal length equal to the incident wavelength 633 nm. The lens is capable of simultaneously manipulating the state of polarization and phase of incident light. The lens converts a linearly polarized beam into radially polarized light, producing a subwavelength focus. When illuminated with a l...
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We study discrete nonlinear edge excitations of polaritonic kagome lattice. We show that when nontrivial topological phase of polaritons is realized, the kagome lattice permits propagation of bright solitons formed from topological edge states.
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Nitrogen-vacancy centers in nanodiamonds are ideal candidates for realization of effective single photon sources. Here, we consider the interaction between the nitrogen-vacancy center and the high-index dielectric nanoparticle. Numerically calculated spectral dependencies of enhancement factor of the emission rate for two different geometries are presented. The results show that ~5-fold enhancemen...
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